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IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.
IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.

Antlia Ultra Narrowband Filters

Antlia Ultra Narrowband filters are the tightest emission line filters in the Antlia range, with a 2.5nm bandpass for H-alpha, OIII and SII. The narrow window cuts light pollution and moonlight sharply and keeps stars small, which helps from city skies and on faint nebula detail.

They are aimed at experienced imagers with monochrome cameras and long integration plans. Very narrow filters are sensitive to steep light cones, so check them against the focal ratio of your optics.

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